30684053 has 2 divisors, whose sum is σ = 30684054. Its totient is φ = 30684052.

The previous prime is 30684011. The next prime is 30684061. The reversal of 30684053 is 35048603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20584369 + 10099684 = 4537^2 + 3178^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30684053 is a prime.

It is a super-2 number, since 2×30684053² = 1883022217013618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30684083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15342026 + 15342027.

It is an arithmetic number, because the mean of its divisors is an integer number (15342027).

Almost surely, 2^30684053 is an apocalyptic number.

It is an amenable number.

30684053 is a deficient number, since it is larger than the sum of its proper divisors (1).

30684053 is an equidigital number, since it uses as much as digits as its factorization.

30684053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 30684053 is about 5539.3188209382. The cubic root of 30684053 is about 313.0672041115.

The spelling of 30684053 in words is "thirty million, six hundred eighty-four thousand, fifty-three".